condition mean min max ZT0-3 5488.75 5488.75 5488.75 ZT4-7 5041.0 5041.0 5041.0 ZT8-11 4482.9 4482.9 4482.9 ZT12-15 3758.4 3758.4 3758.4 ZT16-19 4182.85 4182.85 4182.85 ZT20-23 4562.450000000001 4562.450000000001 4562.450000000001